Dynamics Of The Pendulum Structure Of Wave Power Generation

With the rapid development of the global economy,human demand for energy is increasing,traditional fossil fuels can no longer meet people's needs,and the ocean is rich in energy.Therefore,the development and utilization of ocean energy is of great significance for the sustainable development of energy.In this context,a pendulum oscillator-type ocean wave power generation device is proposed,which can not only utilize the wave force in both horizontal and vertical directions,but also utilizes resonance power generation with waves to improve wave conversion efficiency.The wave power generation device is mainly used to solve the power supply problem of remote islands in China that are inconvenient for long distance transmission.Firstly,by analyzing and researching mature wave power generation technology at home and abroad,and based on the actual situation of China's sea area,a pendulum oscillator type wave power generation device is proposed.At the same time,the composition and working principle of each mechanism of the wave power generation device and the generator are introduced in detail.The selection and installation scheme;and the scope of application of the wave power generation device is given.Secondly,the wave force acting on the assembly housing and the different oscillating bodies is calculated using the Froude-Krylov hypothesis.By comparing the wave forces of the rectangular parallelepiped and the horizontal cylinder,it is found that when the volume is the same,the wave force of the rectangular parallelepiped is greater than the wave force of the horizontal cylinder,so the rectangular parallelepiped is selected as the swinging body of the wave power generating device.At the same time,the regularity diagram of the wave force of the final assembly and the swing body is plotted.Then,the dynamic analysis of the vibration system is carried out.Through the study of the amplitude-frequency characteristics of the horizontal vibration system and the vertical vibration system,it is found that the vibration system has a large amplitude when it resonates with the wave.Therefore,the vibration system and wave resonance are designed to improve the utilization of wave energy.At the same time,the variation of the displacement of the vibration system with time and the variation of the amplitude of the vibration system with the wave frequency are obtained by using the parameters of the selected vibration system.Finally,the modal analysis and harmonic response analysis of the vibration system are carried out by ANSYS software.By comparing the simulation results with the theoretical values,it is found that the error of the two results is small,and the reasonable correctness of the designed wave power generation device is verified.At the same time,the structure of the wave power generation device is optimized for the simulation results,so that the wave power generation device has better adaptability.